Finding the Third Proportional to 3,676,409 and 8,078,494

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676,409 : 8,078,494 = 8,078,494 : x
2. Step 2: Convert to fraction form
   3,676,409/8,078,494 = 8,078,494/x
3. Step 3: Cross multiply
   3,676,409x = 8,078,494 × 8,078,494
4. Step 4: Simplify right side
   3,676,409x = 65,262,065,308,036
5. Step 5: Solve for x
   x = 65,262,065,308,036/3,676,409
6. Step 6: Final answer
   x = 17,751,579.14